Combined snatch-block and hitching device



(No Modem.

W. SIVII'III. COMBINED SNIITGE BLOCK AEE EITGEIIIG DEVICE. No. 550,140.Y Patented Nov. 19,1895.

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A TTHNE YS UNITED STATES PATENT OEEICE.v

VILLIAM SMITH, OF MYSTIC, IOI'V A.

COMBINED SNATCH-BLOCK AND HITCHING DEVICE.

SPECIFICATION forming part of Letters Patent No. 550,140, dated November19, 1895.

Application led May 9, 1894.

To @ZZ whom t may concern.:V

Be it known that I, VILLIAM SMITH, a citizen of the United States,residing at Mystic, in the county of Appanoose, State of Iowa, haveinvented certain new and useful Improvements in a Combined Snatch-Blockand Hitching Device; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention is an improved combination snatch-block and hitchingdevice and relates particularly to certain improvements upon my PatentNo. 509,7 74, granted November 28,

I 1893, the object of the present invention being to provide a devicethat can be quickly and easily moved back and forth upon thepulley-rope, enabling the operator to connect' any number ofhitching-ropes at one time.

Another obj ect is to construct a sheave in which the rope can be lockedWithout damage to said rope, and other objects are to provide animproved form of rope-hooks and a novel construction of root-hooks.

With these various objects in view my invention consists in the peculiarconstruction of the various parts and their novel combination orarrangement, all of which will be fully described hereinafter, and thenpointed out in the claim.

4In the drawings, .Figure 1 is a view illustrating the application of myimproved device. Fig. 2 is an edge of the sheave, and Fig. 3 is a detailside view of the sheave and clevis and sliding block.

In carrying out my invention I employ a clevis Aopen at one end, and atsaid open end is j ournaled a sheave B, having a deep round groove I),twice the depth of the rope and of a width to snugly receive said rope.In one side a groove b extends from the main groove obliquely outthrough the side of the sheave, and projecting inward over said sidegroove are the projections b2, which prevent the rope slipping, as morefully explained hereinafter. Passing around this sheave Bis apulley-rope C. In the closed end of the clevis is arranged a slidingblock D, which holds the hitchingropes E E, and at the end of eachhitchingrope E is secured arope-hook F, said hooks being securelyconnected to the rope by proseriai No. 510,639. @To model.)

viding a recess f at the end of the bore through 4which the rope passes,unraveling the ends of the rope and then filling the said end with leador other suitable metal, as clearly shown in Fig. 2. G indicates myimproved roothook having a hook g at one end to receive thehitching-rope and at its opposite end is provided with the prongs, asshown, to prevent slipping.

rlhe sheave B can be placed anywhere on the pulley-rope and can bequickly moved back and forth, enabling the operator to connect anynumber of hitching-ropes at the same time to pull a close growth ofsmall timbers, where a number of stumps can be pulled at one time andthe power can at any time be doubled by pulling the rope out over thesheave, as shown in Fig. 5. The groove in the sheave being twice thedepth of the rope obviates the necessity of a casing to hold the rope inthe grooves, and being round in form preserves the rope in perfect formduring a heavy pull.

Where my snatch-block is used as a ropecoupler and hitching device thesheave is locked from revolving by a bolt or pin H, which passes throughthe clevis A and through the body of the sheave. The bolts or pins I-Iare attached to the clevis by a chain h and are formed with a spring-keyh', which prevents the bolt being disengaged. The pullrope is drawn uparound the sheave and out through the side groove and held firmly downin the groove by the projections at the side thereof. If the rope wasnot held down firmly in the groove by the projections over the rope,then the spring of the steel rope would cause it to straighten up out ofthe side groove and would not form a wedge in the groove to hold therope on the sheave when the rope has thus been placed around the sheaveand passing itself at the point when the rope goes out through the sideof sheave, the two grooves being a perfect iit for the ropes side byside at this point, in form are wedge-shape, and the two ropes pullingside by side form a wedge out into the side groove, holding the ropefirmly in said side groove, and owing to the perfect form of thegroovein the sheave the rope cannot possibly receive any injury, as itdoes in a V-shaped groove.

Each hitching-rope is attached by a hitch around the sliding block, saidblock pressing IOO the rope firmly against the back of elevis,hold ingthe ropes so that they cannot slip. The hooks attached in the mannerdescribed are securely held to said rope and this attachment can bequickly and easily made and it can be done in the field as well as in ashop, the only thing needed being a small quantity of melted lead orBabbitt metal. K

Having thus described my invention, what I claim, and desire to secureby Letters Pat* ont, is-

In a stump extractor, the co1nbination,with a elevis A, closed at oneend, of the sheave I3 jonrnaled in the open end of the same, said sheavehaving a deep, wide groove l), and an opening D in the side, providingprojections b2, the pulley rope C passing around the sheave, out throughthe opening, and beneath one of the proj eetions, the sliding block I),arranged to slide between the sheave I5 and the closed end of theclevis, the hitehing ropes E, passed around the block D within theClovis; said ropes carrying hooks F at their ends, all of said partsbeing constructed and arranged, substantially as shown and described.

In testimony whereof. I affix my signature in presence of two witnesses.

WILLIAM SM'I'III. Witnesses:

Giro. R. SMITH, FRANK R. SMITH.

